Stadium: Court C Round: 45 Ground: Hardcourt indoor
| ITF W15 Cancun | 2019/03/19 19:00 | Magali Kempen v Chisa Hosonuma | 6-3,6-2 |
| ITF W15 Cancun | 2019/03/16 13:30 | Maria Camila Osorio v Chisa Hosonuma | 6-3,6-1 |
| ITF W15 Cancun | 2019/03/15 13:00 | Chisa Hosonuma v Kirsten-Andrea Weedon | 6-4,6-2 |
| ITF W15 Cancun | 2019/03/14 14:55 | Chisa Hosonuma v Andrea R Villarreal | 6-2,6-1 |
| ITF W15 Cancun | 2019/03/12 14:05 | Tess Sugnaux v Chisa Hosonuma | 7-6,3-6,3-6 |
| ITF Women Playford | 2018/12/31 01:00 | Chisa Hosonuma v Ivana Popovic | 6-3,3-6,4-10 |
| ITF Women Yeongwol | 2018/08/29 01:00 | Rushri Wijesundera v Chisa Hosonuma | 0-6,6-1,4-6 |
| ITF Women Daegu Qual | 2018/06/19 01:00 | Chisa Hosonuma v Satsuki Koike | 6-7,2-6 |
| ITF W15 Cairo | 2019/04/25 08:00 | Ikumi Yamazaki v Charlotte Roemer | 2-6,4-6 |
| ITF W15 Cairo | 2019/04/24 10:35 | Aya El Sayed v Ikumi Yamazaki | 4-6,4-6 |
| ITF W15 Cairo | 2019/04/22 08:00 | Chanel Janssen v Ikumi Yamazaki | 3-6,2-6 |
| ITF W15 Cairo | 2019/04/18 08:00 | Aya El Sayed v Ikumi Yamazaki | 7-6,6-7,7-6 |
| ITF W15 Cairo | 2019/04/17 10:15 | Hala Fouad v Ikumi Yamazaki | 0-6,1-6 |
| ITF W15 Cairo | 2019/04/16 09:00 | Ikumi Yamazaki v Shilpi S Das | 6-0,6-0 |
| ITF Women Kyoto | 2018/09/05 03:50 | Ikumi Yamazaki v Tori Kinard | 4-6,1-6 |
| ITF Women Kyoto | 2018/09/04 01:00 | Rio Kitagawa v Ikumi Yamazaki | 3-6,1-6 |